Pneumatic fastener



FIG. 1 is a right perspective view of the pneumatic fastener;

FIG. 2 is a left elevational view of the design of FIG. 1;

FIG. 3 is a front elevational view of the design of FIG. 1;

FIG. 4 is a back elevational view of the design of FIG. 1;

FIG. 5 is a top elevational view of the design of FIG. 1; and,

FIG. 6 is a better elevational view of the design of FIG. 1. 

The ornamental design for a pneumatic fastener, as shown. 